Stop spamming the forum!!!

Use all the money and stake 2 odds on bet9ja since you can't think on your own and want advise from total strangers... You are not sure if those advising are drug addicts or under the bridge junkies yet you want advise from us? You don't know if those to advise you have never run any successful business yet you want advise from strangers ?.
Since you won't have sense staje all the money on bet9ja

If you have 4m cash with you, I wouldn't advice you to go into transportation business. High cost of fuel, engine oil, maintenance, police and agbero extortion, accidents (minor or major), insecurity...etc, would make it impossible to recover back your principal even after 2 years.

With that money, you can open a grocery store, as a graduate, you can advertise it on Facebook, Instagram, WhatsApp...etc. Use your knowledge as a graduate to further expand the business, like registering as a distributor with factories that produce most of the products you sell so as to buy at at a much discounted price and boost your profits.

Good luck.